From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
Subject: Re: [BUG] GPF on hardware breakpoints (preempt_notifier)
Date: Sun, 09 Sep 2007 15:14:39 -0500
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Cc: kvm-devel-TtF/mJH4Jtrk1uMJSBkQmQ@public.gmane.org, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Luca <kronos.it-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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Luca wrote:
> On 9/9/07, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> wrote:
>   
>> Luca Tettamanti wrote:
>>     
>>> Hi,
>>> while debugging a program with GDB I got a GPF which seems related to
>>> KVM. Note that I was *not* using the debugger inside the guest nor on
>>> the virtual machine. The target was an unrelated userspace program.
>>>
>>>       
>> Yes, kvm is dirtily misappropriating the debug registers on older
>> kernels.
>>     
>
> I'm runninng the current Linus' git tree, shall I test kvm.git?
>   

Do you have CONFIG_PREEMPT_NOTIFIERS enabled?

Regards,

Anthony Liguori

> Luca
>
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